#51DB51#51DB51

#51DB51 is a light, highly saturated green. Relative luminance 0.530; OKLCH L 78.8% C 0.215 H 143.2°. Best body text is #000000 at 11.60:1 contrast (WCAG AA passes).

Color values

HEX	#51DB51
RGB	rgb(81, 219, 81)
HSL	hsl(120, 66%, 59%)
HSV	hsv(120, 63%, 86%)
CMYK	cmyk(63%, 0%, 63%, 14.1%)
CIE-LAB	lab(77.88, -63.42, 55.40)
CIE-LCH	lch(77.88, 84.21, 138.86°)
OKLab	oklab(78.82% -0.1723 0.1289)
OKLCH	oklch(78.82% 0.215 143.2)
XYZ	xyz(30.2083, 53.0035, 16.4217)
Luminance	0.5301 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51DB51 #DB51DB

analogous

#96DB51 #51DB51 #51DB96

triadic

#51DB51 #5151DB #DB5151

tetradic

#51DB51 #5196DB #DB51DB #DB9651

square

#51DB51 #5196DB #DB51DB #DB9651

split-complementary

#51DB51 #9651DB #DB5196

monochromatic

#1E931E #29C629 #51DB51 #84E584 #B6F0B6

Accessibility & contrast

On white

1.81

#51DB51 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.60

#51DB51 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51DB51

11.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51DB51	#FFFFFF	#000000	##000000
##51DB51	1.00	1.81	11.60	11.60
#FFFFFF	1.81	1.00	21.00	21.00
#000000	11.60	21.00	1.00	1.00
##000000	11.60	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DFC841

Deuteranopia (green-blind)

#CFBC5D

Tritanopia (blue-blind)

#34D5BE

Achromatopsia (no color)

#C0C0C0

Design tokens & code

CSS

--color: #51db51;
/* rgb */ color: rgb(81, 219, 81);
/* oklch */ color: oklch(78.8% 0.215 143.2);

Tailwind

colors: {
  custom: {
    50: '#91e787',
    500: '#51db51',
    950: '#000000',
  },
}

SCSS

$custom: #51db51;
$custom-light: #91e787;
$custom-dark: #000000;

JSON

{
  "hex": "#51db51",
  "rgb": {
    "r": 81,
    "g": 219,
    "b": 81
  },
  "hsl": {
    "h": 120,
    "s": 65.714,
    "l": 58.824
  },
  "oklch": {
    "l": 0.7882,
    "c": 0.21514,
    "h": 143.2
  },
  "luminance": 0.53006
}

Semantic roles & 50–950 ramp

primary

#51DB51

secondary

#983898

accent

#3FE9E9

background

#FCFEFC

surface

#F5FDF3

border

#CFD5CD

text

#0E160C

muted

#7F847F

Preview Lab

Preview with #51DB51

Body copy rendered with the generated semantic roles for this colour.

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